<!DOCTYPE html>
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<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <?php
        $da = date("w"); 
if( $da == "1" ){ 
echo "<img src='img/1539071848.jpg'/> "; 
}else if( $da == "2" ){ 
echo "<img src='img/1539071854.jpg'/>"; 
}else if( $da == "3" ){ 
echo" <img src='img/1539071852.jpg'/>";
}else if( $da == "4" ){ 
echo "<img src='img/1539071859.jpg'/>"; 
}else if( $da == "5" ){ 
echo "<img src='img/1539071862.jpg'/> "; 
}else if( $da == "6" ){ 
echo "<img src='img/1539071856.jpg'/> "; 
}else if( $da == "0" ){ 
echo "<img src='img/1539071865.jpg'/> "; 
}else{ 
echo "你输入有误!!"; 
}; 

        ?>
    </body>
</html>
